Author's Notes: Tim and Kitty have always been two of my favourite characters so it seemed only natural to me to hook them up. I'm not 100% happy with this but hopefully you'll enjoy it.

"Superboy told me his secret identity," Kitty grinned. Robin finished tying up the thugs they'd apprehended: "He tells everyone his secret identity." "Then why won't you tell me yours?" Kitty stepped towards him, pressing a finger to his chest accusingly. "Because." Robin answered.

Kitty went to Gotham High, ever since she left the Xavier Institute. It wasn't the nicest of places, and it could be difficult for a young good-looking girl like Kitty but she was hardly defenceless and she'd made a good group of friends. Amongst them was Tim Drake. Tim was a bit of a nerd and generally kept himself to himself but he was actually well-liked around the school, and quite popular, even if he didn't seem to realise this himself. Kitty thought he was kind of cute.

Tim had known Kitty Pryde was Shadowcat even before she had told him in an attempt to get him to reveal his identity. This was part of the reason why he kept an eye on her in his civilian identity. Tim denied the other part of the reason. The feisty brunette was a good friend, and Tim's heartbeat sped up a little every time she was near.

"Timothy!" she greeted him, coming up on him from behind and playfully wrapping her arms around his shoulders. "Hi Kitty," he smiled awkwardly. Kitty wore skin-tight jeans with a white half-top. It didn't occur to Tim that she was dressed deliberately provocatively. "I will see you later," she grinned, touching his nose teasingly, "for that physics help you promised me." He nodded. "Sure," he managed to reply. Then Kitty was gone.

Tim had put on his costume to clear his head. He always found himself more confident as Robin than as Tim Drake. It took him by surprise when he found Kitty in the same alleyway as the last night, beating up very-similar looking Gotham thugs. "No costume?" he commented swooping down and placing a well-aimed kick into the side of the last thug's head. She was still in the same outfit as she had been at school. "Nope," she answered, stepping towards him.

It now occurred to Tim that he was right up against the wall, and unlike Kitty, he didn't have phasing powers to escape. She kept pacing towards him, showing no signs of stopping until she was pressed right up against him. Her heart was racing even faster than his was. She cupped his cheek, her fingers lining the edges of his cheekbones. Then, silently, she leant forwards and she kissed him.

Robin tried to resist, but the sultry Shadowcat was too much for him. He found himself kissing back. It was her that pulled away. She was breathing hard and there was a nervous look in her eyes. "There's a boy at my school," she explained, "He's cute," she added. Robin didn't respond yet. "I like you, but we can hardly have a relationship if I don't know who you are. So, I guess what I'm trying to say is, I'm going to ask this boy out. Unless... Unless there's something between us that you want to... take further?"

Robin didn't have the words to answer. He was usually so in control, so calculating, his confidence soaring above his partners', but he just didn't know what to say. She had powers, and training from Wolverine no less, if there was anyone safe to have a relationship with, it was probably her. He took off his mask.

"Oh My God!" she screamed when she saw his identity. "Tim? How did I not recognise you? I mean your mask is tiny!" "It's the cape," Tim grinned, "chicks dig the cape." Kitty raised an eyebrow. Her heart felt like it wanted to jump out of her body and erupt like Vesuvius. He was so hot and he made her feel so good but so nervous all the time she was around him. She leaped forwards onto him, her lips smothering his with kisses.

She was pushing him onto his back up on the trash compactor and straddling him. Her hands pressed on his chest and the kiss continued passionately. His hands were on her jeans, rubbing gently. Kitty rolled off her top and tossed it aside. Tim's hands ran up her thighs to her butt-cheeks, which he squeezed tightly.

Her hips were lightly rocking against his, uncontrollably. She was tearing at his costume, her small hands tugging away his red shirt, up and over his head. She took the cape and draped over her shoulders as if she was wearing it. "How do I look?" she smirked. "Hot," he grinned, rolling her onto her back, beneath him.

She ran her hands over his bare chest slowly, and a tingling feeling shot through her fingers. Tim was rubbing her thighs again; her soft inner thighs. She moaned softly as he unzipped her jeans and pulled them down off her legs. He was silent as he lay on top her of her shirtless, stroking her like an owner would stroke a cat.

Suddenly, in one swift action, she stripped away the rest of his costume. Both in their underwear, they embraced in another kiss and Tim unclicked her bra, watching it fall away. He gave her tits a squeeze, the modest mounds filling his hands as he rolled the nipples between his fingers and massaged the gentle flesh of boobs.

There was a huge bulge in Tim's underwear that Kitty was anxious to get out of his underwear. The underwear flew off him presently. His big penis pressed against her urgently and he groaned as she rubbed it lightly with her hands. Then she eased away her knickers and tucked them into Robin's discarded utility belt. "A souvenir..." she whispered. He pushed his cock into her revealed vagina. Kitty whimpered in his arms.

He thrust hard into her tight wet pussy, his hands groping her naked body to calm her. Her limbs flailed uncontrollably beneath him with each thrust, waving exposed in the air. He was more than she'd ever imagined: powerful, passionate, caring yet forceful as he screwed her in the dark alley. Kitty's mind drifted to physics tutoring later that evening. That was going to be such fun, especially when he saw what she was going to wear for him...

He kept placing kisses on her as he fucked her but it couldn't stop her desperate panting. Her legs lifted and clamped to him as he pushed her hair back behind her ear and slammed his lips into hers for the final kiss. He gave one last thrust, hard enough to make her cry out, the cry turned to a moan as he finished in her.

Tim stroked her sweating body. "It's pretty dirty here isn't it," he commented with a smile, glancing around at the alleyway. "Physics tutoring tonight," she smirked, "I'll show you dirty..."